Re: Monitor calibration & profiling in a multiuser OSX environment.
Re: Monitor calibration & profiling in a multiuser OSX environment.
- Subject: Re: Monitor calibration & profiling in a multiuser OSX environment.
- From: Roger Breton <email@hidden>
- Date: Mon, 01 Sep 2003 09:58:10 -0400
Hi Peter,
>
If my understanding is correct, the process of recalibrating a monitor prior
>
to
>
profiling it changes the behavior of the monitor (hopefully close to some
>
standard).
Well, with today's crop of monitor profiling software, the so-called sacred
"standard" have become meaningless. You can chose to set your monitor close
to 5000K or 6500K or any other color temperature your heart desires. But you
can also leave the monitor in its 'native' state or chose arbitrary
chromaticities for your target. A good example of this flexibility is
incarnated by the latest version of basICColor Display and OptiCal (although
I am sure OptiCal allows calibrating to target chromaticities) and GMB
MeasureTool Calibrator.
>
Profiling then measures this new state.
That's exactly it.
>
I also thought that changing the behavior of the monitor, even a little, would
>
would render inaccurate all the previous profiles made for that monitor.
That's the idea.
>
QUESTION 1
>
If this is true can someone explain to me how having custom monitor profiles
>
as
>
a personal user preference in a multiuser system (OSX) is meant to work?
To me that is a useless idea as the physical monitor does not change between
users, does it? Unless user A prefers to work at 5000K while user B prefers
to work at 6500K. But for this to work really well ('good' 5000K vs 6500K),
the calibration of the white point ought to be done at the hardware level,
IMO, not just through software. But you can argue that the two methods will
yield the absolute same chromaticities.
>
Surely when any user recalibrates & profiles a monitor, the previously created
>
monitor profiles that are still in use by other people for that particular
>
monitor will then become inaccurate?
Yes, that's my thinking too.
>
Maybe I have missed something obvious? The location of the monitor profile
>
under
>
OS9 made more sense to me from a multiuser point of view.
Oh, why is that?
>
QUESTION 2
>
Can EyeOne match's default monitor profile saving behavior be changed to save
>
in
>
the 'Root(slash) / library / colorsync / profiles' rather than '~(home)/
>
library
>
/ colorsync / profiles' or is this a bad idea?
It's not a bad idea. Talk to GretagMacbeth about it. Presently,
I have not seen how to do this from the software itself (v2.0.3), but there
is nothing that prevents you from manually copying the profile in the
OSX>Library>ColorSync>Profile folder and set it as the 'System' profile
through the Monitor System Preference. I suspect that this would work across
ALL users. Or can be set very simply from each user's System Preferences.
>
Thanks for you help
>
Peter Miles
No problem.
Roger Breton | Laval, Canada | email@hidden
http://pages.infinit.net/graxx
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